David's most know victory is the defeat of Goliath. This can represent our struggle agianst our flesh in which we lose by our self, but when God fights for you then came you talk down the giant. The mistake that people make sometimes is that God should be on our side. but the reality is that we should be on His side. When we are on His side we will be able to fight the giants in our lives, but if we try it alone we will fail. In conclusion you must always trust God to help you to defeat the giant.
Marshall